Custom libre kernel configuration

[phodina <phodina@protonmail.com>]

Hi!

I'm attempting to compile a custom linux libre kernel with several additional config options enabled (listed below).

Unfortunately I get the following error messages:

Throw to key `match-error' with args `("match" "no matching pattern" ("CONFIG_ANDROID" . y))'.

I followed the blog post[1] on customizing kernel.

Downloaded the sources and checked for the options in menuconfig:

tar xf $(guix build linux-libre --source)
guix environment linux-libre --ad-hoc ncurses -- make menuconfig

Could you please give me hint on what I'm doing wrong?

Petr

--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -722,6 +722,14 @@ (define %bpf-extra-linux-options
     ;; kheaders module
     ("CONFIG_IKHEADERS" . #t)))

+(define %waydroid-extra-linux-options
+  `(;; Modules required for waydroid:
+   ("CONFIG_ASHMEM" . m)
+   ("CONFIG_ANDROID" . y)
+   ("CONFIG_ANDROID_BINDER_IPC" . m)
+   ("CONFIG_ANDROID_BINDERFS" . n)
+   ("CONFIG_ANDROID_BINDER_DEVICES" . "binder,hwbinder,vndbinder")))
+
 (define (config->string options)
   (string-join (map (match-lambda
                       ((option . 'm)
@@ -1143,6 +1151,25 @@ (define-public linux-libre-mips64el-fuloong2e
                       `(("CONFIG_OVERLAY_FS" . m))
                       %default-extra-linux-options)))

+(define-public linux-libre-with-waydroid
+  (let ((base-linux-libre
+         (make-linux-libre*
+          linux-libre-5.14-version
+          linux-libre-5.14-gnu-revision
+          linux-libre-5.14-source
+          '("x86_64-linux" "i686-linux" "armhf-linux"
+            "aarch64-linux" "riscv64-linux")
+          #:extra-version "bpf"
+          #:configuration-file kernel-config
+          #:extra-options
+          (append %bpf-extra-linux-options
+                  %waydroid-extra-linux-options
+                  %default-extra-linux-options))))
+    (package
+      (inherit base-linux-libre)
+         (name "linux-libre-waydroid")
+      (inputs `(("cpio" ,cpio) ,@(package-inputs base-linux-libre))))))
+
 (define-public linux-libre-with-bpf
   (let ((base-linux-libre
          (make-linux-libre*

---

[1] https://guix.gnu.org/en/blog/2019/creating-and-using-a-custom-linux-kernel-on-guix-system